Check the listing for details. Bacharach 0019-7163 - Monoxor Plus Portable Carbon Monoxide Analyzer. Condition: Used, Made in United States. Listed at 95.00 USD. Bacharach's Monoxor® Plus is an advanced carbon monoxide analyzer designed for ambient CO safety testing and direct CO measurements from boilers, furnaces or gas appliances. Includes Main unit No case or other accessories Features Reading for Ambient Carbon Monoxide Reading for Flue Gas Carbon Monoxide Combustion App Automatic CO Alarm Graphical and Standard Display Screens Ambient and Flue Gas Temperatures Precalibrated, Sensor Exchange Program Sensors